Power-pike for erecting poles.



C. E. SEDGWICK.

POWER PIKE FOR ERECTING POLES.

APPLICATION HEED SEPT. 22. 1914.

1,174,950. Patented Mar. 7,1916.

3 SHEETS-SHEET l.

WITNESSES: INVEN'IOR BY zziaflm ATTORNEY C. E. SEDGWICK.

POWER PIKE FOR ERECTING POLES.

APPLICATION FILED SEPT. 22. I914.

Patented Mar. 7, 1916.

3 SHEETS-SHEET 2- BY W Arronxm C. E. SEDGWICK.

POWER PIKE FOR ERECTING POLES APPLICATION FILED SEPT. 22. 1914.

1,174,950. Patented Mar.7,1916.

3 SHEETS-SHEET 3.

IN VENTOR \VITN ES SES CHARLES E. SEDGWICK, OF DIXON, CALIFORNIA.

POWER-PIKE FOR ERECTING POLES.

Specification of Letters Patent.

Patented Mar. 7, 1933M.

Application filed. September 22, 1914. Serial No. 863,042.

T 0 ct whom it may concern.

Be it known that L-CHARLES E. SEDGWICK, a citizenof the United States,residing at Dixon, in the county of Solano and State of California, haveinvented new and useful Improvements in Power-Pikes for Erecting Poles,of which the following isa specification.

This invention relates to an apparatus for use by power and telephonecompanies and others in the erection of poles; and the object of thepresent invention is to provide a simple, practical power pike for thissort of work, which can be operated speedily and economically, and bythe means of which two men can accomplish the work formerly required ofsix. The operation and advantages of the device will appear hereinafter.

The invention consists of the parts and the construction and combinationof parts as hereinafter more fully described and claimed, havingreference to the accompanying drawings, in which- Figure 1 is aperspective view of first operation. Fig. 2 is a perspective view ofsecond operation. Fig. 3 is a perspective view of third operation. Fig.4E is a perspective view of fourth operation. Fig. 5 is a perspectiveview of final operation. Fig. 6 is a detail view of the pikejaw. Fig. 7is a detail view of the fork on the end of the tongues. Fig. 8 is adetail view of the stirrup.

The apparatus comprises a pair of ordinary cart wheels 2, an axle 3, anda long tongue 4 attached to the axle and forming one member of the powerpike; the other pike member 5 being arranged at right angles to thetongue and adjacent to the axle. The pike member 5, in practice,consists of a pipe braced from the tongue by a diagonally disposed pipesection 6 and.

guyed, as shown at 7, from its top to points near the wheels to preventside movement. The tongue carries at its outer end a Y-shaped jaw 8,having serrated edges to grip the pole to be elevated.

9 is a suitable swivel yoke with a stem 10 about eighteen inches longdropped into the top of the hollow pike 5,; the lower end of the stemhaving aperipheral groove 11 cut around it, and a set-screw 12 is putinto the pipe opposite the groove to engage the same, so that while theswivel can turn freely it cannot be pulled out. A chain 13 is attachedto one horn of the yoke while the opposite horn of the yoke is split toprovide a V-opening 14 to engage a link of the chain so that the lattercan be readily looked into the yoke when first picking up a pole and isreadily released when the pole has been lifted into supported positionupon the pike 5, as will be shortly described.

15 is a sprag which can be readily dropped for the purpose of preventingthe wheels from turning, in elevating a pole, and can be raised and heldin inoperative position by suitable means, as the chains 16.

In erecting a pole the operation is as follows, the pole beingrepresented at 17 The butt of the pole is placed in the hole or sopositioned and supported that when the outer end of the pole is liftedthe butt will slide into the hole. The power pike is then broughtalongside of the pole and posii tioned as shown in Fig. 1, care beingtaken that the axle 1s placed in a line passing through the pole holeand at approximately right angles to a line connecting the guying pointsltd--19, from which points the pole is to be steadied by lines 20suitably attached to the pole. These guy lines 20 are referred to asthey are used in practice in erecting the pole, although they form noessential part of the present invention.

The haul line 21, which has previously been connected to the outer endof the pipe 5, adjacent to the yoke 9, is run through the Y-jaw 8, atthe end of tongue 4, and connected to an automobile, horse, or any othermeans of traction. The wheels 2 are held from turning by the sprag 15,or any other suitable means. Pulling on the haul line 21 elevates thepole until the parts are brought into the position shown in Fig. 2 withthe pole supported vertically above the wheels and on the pike 5, withthe center of gravity sufiiciently inside of axle 3 so that there is nodanger of the tongue flying up in the air accidentally. The lock chain18 is then released from the pole. The tongue is then swung around untilit stands beneath and in the plane of the pole, with the axle 3 at rightangles to the pole; the swivel yoke 9 permitting this turning movement.The tongue is then allowed to rise until the jaw 8 engages the undersideof the pole; the weight of the pole on pike 5 holding the tongue inposition. It should be stated that in starting to elevate the pole, theyoke 9 is engaged near the outer end of the pole and the parts are soproportioned that when the pole has been elevated, as just described, bymeans of the pike 5, the jaw 8 will engage the pole at a sufficientdistance from the base of the pole to give the necessary lift in orderto bring the pole to a vertical position, as will be shortly described.Next, a block and tackle 22 is connected to the pole, near its base, andto the chain 23 of the long tongue adjacent to the axle, as shown inFig. 3.- Pulling on the line and tackle 22 causes the pole and tongue toact toggle-fashion, gradually pulling the wheels in toward the base ofthe pole and bringing the latter finally into upright and verticalposition.

24 is a stirrup, hung from the tongue, through which the chain 23passes. The length of this stirrup 24 is such that as the pull on thetackle brings the tongue to a position nearly at right angles to thepole, the pull is taken 05 of the end of the tongue and brought upon thestirrup 2 This takes the bending moment off of the tongue, therebyremoving the tendency of the jaw 8 to fly off of the pole and allowingthe latter to drop. In other words, the stirrup transfers the up strainon the tongue to a down strain just as soon as the chain strikes it andmakes for safety in a considerable degree. This brings to notice two ofthe important features of the device. First, there is no need of anyonebeing within the danger zone when the pole is moving; and, second, themaximum strain on all parts and in all operations is at the starting ofmotion. If anything is going to break, it will do so at that time withlittle or no resultant damage. Another important feature in connectionwith this invention is that it enables a pole to be erected close to afence.

As an erector, one of the chief constructional features is thearrangement of the two pikes 4 and 5 which are at right angles to eachother and are mounted on wheels and capable of successive action in themanner hereinbefore described. I

The apparatus, in addition to serving as a pole erector, furnishes meansfor carrying poles from place to place.

Having thus described my invention, what I claim and desire to secure byLetters Patent is g 1. A power pike for setting poles, comprising a pairof pike members arranged at right angles one to the other rigidlyconnected to form a portable structure and each having aws on its outerend to successively engagea pole, and a wheeled support for the pikes attheir point of juncture.

2. A power pike, comprising apair ofv pike members arranged at rightangles one to the other and rigidly connected at their intersection toform a'portable structure, a wheeled support for the pikes at theirpoint of juncture, and means for applying power a pair of wheels, atongue on the axle, a pike member angularly supported on the tongue,

a jaw member on the tongue, and a swivel oke on the ike member.

4. A power pike, comprising anaxle and a pair of wheels, a tongue on theaxle, a pike member angularly supported on the tongue, a aw member onthe tongue, a swivel yoke on the pike member, means actingthrough V thetongue as a lever to raise the pike member, and means actingtogglefaslnon with the tongue to raise the latter.

i 5. The combination in a power pike, of' an axle and its wheels, atongue at right angles to the axle and having a short projection to therear of the axle and a long forward projection'forming a pike member, asecond pike member mounted over the axle, a stirrup on the axle, and achain passed through the stirrup and connected to the rearward short endof the tongue, said stirrup and chain coacting so that when the chain ispulled upon horizontallyin the direction of the tongue the stirrup actsgradually to transfer the point of application of power nearer the axle,substantially as and for the purpose described.

6. An apparatus for setting polesvertically in holes prepared therefor,comprising a frame with rigid, relatively perpendicular pike members,means at the outer end of each pike member for engaging a pole, meansfor tilting said frame on its corner to lift a pole carried by one ofthe engaging members a predetermined distance, means for turning theframe to a position substantially parallel with the pole to bring theother pole engaging member into play, and

means for tilting the frame oppositely to elevate the pole to its finalposition.

7. An apparatus for setting poles vertically in holes prepared therefor,comprising a frame with rigid, relatively perpendicular iio pikemembers, means at the outer end of each pike member for engaging a pole,means for tilting said frame on its corner to lift a pole carried by oneof the engaging members a predetermined distance, means for turning theframe to a position substantially parallel with the pole to bring theother pole engaging member into play, means for tilting the frameoppositely to elevate the pole to its final position, and

a wheeled support upon which the frame is mounted movable toward thepole in the latter stage of the operation.

8. A pole erecting device comprising a frame including rigidly andangularly related arms, each provided with a pole grip ping part, andmeans supporting the frame for movement; I

9. In a pole erecting device, the combination of a frame, means thereonfor raising a pole to slanting position, rigid means on said frame to bebrought into engaging position with the pole when the latter ispartially raised, and means for moving said rigid engaging member towardthe pole to raise the latter to vertical position.

10. In a pole erecting device, the combination of a movable tiltingframe, a push member rigid therewith to engage with the pole when thelatter is in slanting position, and means for moving said frame towardthe pole to operate the push member in a manner to raise the pole tovertical position, said frame being tiltable to allow the push member torise with the pole.

11. In a pole erecting device, a movably supported frame, an arm on theframe formed with a pole gripping part to engage with and elevate a polepartially, means for operating said arm to elevate the pole, a secondarm on the frame angularly and rigidly related to the first arm andformed with a pole gripping part to engage the pole while supported bythe first arm for elevating the pole to upright position, and operatingmeans for the second arm.

12. In a pole erecting device, a frame, wheels supporting the frame formovement, a pole engaging rigid member carried by the frame and formedwith a pole gripping part to engage a pole for raising the same to anupright position, and means connected to the pole engaging member formoving the frame on its supporting wheels toward the pole, while thelatter is being engaged by the pole engaging member.

13. In a device for erecting a pole having its lower end substantiallyfixed, a wheeled frame, a forward rigid member carried thereby to engagethe pole above its lower end to elevate the pole to upright position, arear extension on the frame, a cable secured to the rear extension andextending forwardly under the latter for advancing the wheeled frame andexerting a downward pull on the extension thereby to tend to elevate thepole engaging member, and a stirrup depending from the latter to engagethe cable to transfer the downward pull from the rear extension to thepole engaging member.

14. In a power pike for erecting poles, a pair of angularly relatedarms, a supporting carriage for the arms, a fixed pole gripping elementon one arm, and a turntable pole gripping element on the other arm.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing v witnesses.

CHARLES E. SEDGVVIGK.

lVitnesses DAN. MGKINNON, DAN WRIGHT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

